An abrupt, sharp sound, especially one made by two hard objects colliding repetitively; a sound midway between a click and a clunk.

(intransitive) To make a sudden, sharp noise, or succession of noises; to click. / (transitive) To cause to make a sudden, sharp noise, or succession of noises; to click.

simple past tense and past participle of clack

present participle of clack

A sound that clacks.

plural of clack

Third-person singular simple present indicative form of clack

Clackmannanshire (in postal addresses)

plural of clacking

A surname.